user manual BHOON KHARN

One system for people building homes — materials market · project and money control · construction documents · calculators · AI assistant

Edition of August 22, 2026 · read only your role in "Level 1" to get started · details of every tool are in "Level 2"

Level 1 — get started in 5 minutes for your role

Read only the boxes that apply to you — each box is the shortest path from zero to your first completed task

Homeowner — building or extending a house

  1. Go to /login Sign up with email, or one tap of the Google button
  2. You'll be taken to /dashboard — tap "Start by creating a project", name your house and enter the contract value (if you already have a contractor)
  3. On the /accounting page, add payment milestones per the contract ("Milestones" menu) — this is the core: every baht flows through milestones
  4. Invite your contractor to the project ("Team" menu → add member → enter their email, choose the "Contractor" role) — they see only their own milestones, not your overall finances
  5. Record your first expense: "Expenses" menu → tap scan receipt, photograph the receipt and AI fills it in; check it, then save
Money rules: only the homeowner can edit money figures; others see only what you grant them · deleted projects stay in the trash for 30 days and can be restored at /trash
Screenshot d_dashboard

Contractor

  1. Accept the project invitation from the homeowner (log in with the same email you were invited with) — the project appears in /dashboard automatically
  2. Open /accounting → "My work" shows the milestones you're responsible for and their values
  3. Finished a milestone → go to "Milestones" → tap submit and attach photo evidence (photos are locked and can't be deleted or edited — both sides have the same photo set for reference)
  4. Create documents without a project: quotation /quote · draft contract /make-contract then send the client a link to view
  5. Want more work? Go to the market → the job posts/bids tab, and quote on jobs homeowners have posted

Site tradesperson — mainly on mobile

  1. Open /site-upload on your phone (save the link to your home screen and use it like an app)
  2. Choose the project + milestone → take/choose photos → tap send
  3. Lost signal? No problem: photos are always saved on your device first and sent automatically once you're back online. The bar at the top always shows how many photos are waiting
  4. Check in to work: scan the QR code the site lead posted at the site → enter your phone number → the system records your in/out times (used to calculate wages automatically)
Screenshot m_site-upload

Material buyers

  1. Come straight to /marketplace no sign-up needed — search for what you need (typos in tone marks still work)
  2. Filter by category, province and price range — options with no items fade out, so no guessing
  3. Check prices before deciding: reference prices /price · compare 5 major stores /price-compare
  4. Add to cart → tap order (you'll need to log in now) → enter address and phone → follow the payment steps on screen
  5. Track status at /orders — once you receive your items, don't forget to leave a star rating (reviews from verified buyers get a special badge)
Buying in bulk? Use "Request a quotation (RFQ)" to send a request to several stores at once and compare prices in one table, or see "Group buying" /group-buy to get wholesale prices
Screenshot d_marketplace

Material stores — open a store on the platform

  1. Log in → go to the market → "Register a store" and enter your store name and contact details
  2. Seller verification: upload your ID card/bank book (kept private, never public) — you can list products once it's approved
  3. Add products: clear photos (at least 1 front view) + name, category, price, stock, unit · you can set tiered prices (cheaper in bulk) and a minimum order
  4. New products go into a review queue before going on sale — see the status in your store dashboard /seller
  5. New order: accept → ship → enter the tracking number · see your balance and payout cycle under "My earnings"
Screenshot d_seller

Engineers / inspectors / designers

  1. Engineers taking inspection jobs: go to the market → "Hire an engineer to inspect" → "Register as an engineer", wait for admin verification, then take jobs in your area
  2. Designers: create your profile + portfolio at /designer-portal — customers find you from /designers
  3. Invited to a project as engineer/inspector: open /engineer or /inspector to see the inspection queue, NCRs and documents waiting for signature
  4. Repair/service tradespeople: your profile is at /technician take repair jobs from homeowners

Level 2 — detailed reference for every tool

1. Getting started: sign up, log in, menus and floating buttons

Sign up / log in (/login)

  1. The easiest way: the "Sign in with Google" button — one click, no password to remember
  2. Or enter your email + set a password, then tap sign up
Forgot the password for an email account: enter your email in the email box, then tap "Forgot password" under the password box. We'll email you a reset link — check your spam folder if you can't find it · if the same email is linked to Google, just sign in with Google

Main menu (top bar on every page)

Materials market · house ideas · know-how · community · free tools (all calculators and documents) · manage your build · gold button "My dashboard / Log in"

Floating buttons, bottom right (on every page)

Dashboard (/dashboard)

Your hub after logging in: choose your role for relevant shortcuts · see key figures · a "what's next" list the system ticks off when you've actually done it · all your projects and buttons to every function

Bell notifications

Top right after logging in — submitted/returned milestones, invitations, orders and things waiting for your decision pop up here. Tap an item to jump straight to that page

2. Materials market (/marketplace)

Search and filter

  1. Type an item name in the search box — suggestions appear as you type, and it understands missing tone marks and odd spacing
  2. Use the filters on the left: category, province, price range — the number next to each filter shows how many items remain if you choose it
  3. Filtered to nothing? The system suggests which filter to remove to find items — one tap

Product page

See photos, specs, price (if the store set tiered pricing, you'll see the price for each quantity), stock, reviews, Q&A and similar products · the add to cart/buy now buttons are in the box on the right (mobile: a button pinned to the bottom of the screen)

Cart and checkout

  1. Tap the cart icon and check the items and quantities
  2. Enter a discount code before paying — the system tells you immediately whether it works, and why not
  3. Tap order → enter name, delivery address and phone → choose/follow the payment option shown on screen
  4. Track status at /orders: waiting for the store → shipped (with tracking number) → received, tap confirm

Smart buying tools

ToolsatWhat it's for
Material reference prices/priceSee historical reference prices so you don't get overcharged
Compare prices at 5 major stores/price-compareWhat do big stores charge for the same item?
Request a quotation (RFQ)Market → RFQ tabPost the items you need, several stores bid against each other, compare them in one table and pick the store you like
Group buying/group-buyCombine your order with others to reach the minimum and get wholesale prices
Material bundles/bundlesItems used together packaged as a set at one price
Material quantity calculatorMarket → material calculatorEnter the area and AI calculates how many pieces you need
Favorites/wishlistSave items to view later

Product reviews

Give 1–5 stars with text and photos — if you actually bought the item through the platform, your review gets a "Verified purchase" badge and its score is shown separately, so other buyers trust your review more

Screenshot d_orders Screenshot d_price

3. Managing your build (/accounting) — the biggest tool set on the site

This page brings together more than 80 project tools. The first time you open it, it asks your role so the menu fits your work. The left menu has 6 sections (switch "work mode" and pin the tools you use most):

Screenshot d_accounting

Overview section

Finance section (only the homeowner can edit figures)

Construction section

Procurement & materials section

Contracts & documents section

Extra tools section

Use Ctrl+K on this page to jump to any tool by typing its name — much faster than scrolling the menu

4. Site work: send photos, check in, daily reports

Send site photos (/site-upload)

  1. Open on your phone and choose the project and the milestone you're working on
  2. Take photos or choose from your album (several at once) → tap send
  3. No signal? Photos are always saved on your device first — closing the page or a flat battery won't lose them. Once you're online they're sent automatically and linked to the right milestone

QR check-in

The site lead prints a QR code from the "QR Check-in" menu and posts it at the site → workers scan and enter their phone number once → the system records in/out times automatically, ready for wage calculation in the "Tradespeople's wages" menu

Daily site report

Whoever is on site writes a short note on today's work + attaches photos — AI turns it into an easy-to-read report the homeowner can open from anywhere

5. Quick documents — no project needed

Create a BOQ quotation (/quote)

  1. Tap create new, enter the job name and client name
  2. Add items: work/material, quantity, unit, unit price — the total updates live
  3. Set a quotation expiry date (the client sees clearly how long the price holds)
  4. Tap share — you get a short link to send the client that looks good on a phone, or tap print as a document

Draft a construction contract (/make-contract)

  1. Choose the type of work, enter the parties, value and payment milestones
  2. The system drafts standard clauses for you — every line can be edited
  3. Share the link for the other party to read, then arrange signing (projects have e-signature for signing online)

6. The 4 calculators ("Free tools" menu)

ToolsatHow to use it
House construction cost calculator/house-calcEnter the area, number of stories and material grade → get an approximate construction budget, broken down by category
Home loan calculator/loan-calcEnter the loan amount, interest and term → monthly payment, the full repayment schedule, and try extra payments
Land and title deed calculator/land-calcConvert rai-ngan-square wah + photograph a title deed for AI to read the area + pin the plot on a map
Room and zone layout/room-zoneDrag rooms onto a plan and try out your home's proportions before talking to a designer
Every calculator remembers what you entered on your device — close the page by accident and your values are still there

7. House ideas, articles and community

House ideas (/gallery)

A library of decor/building photos, filtered by room, style and category — save the ones you like to your board (see them all at /my-collection) the system also tags the materials visible in each photo

Screenshot d_gallery

Know-how articles (/articles)

Easy-to-read articles about homes, added all the time, searchable by topic

Community Q&A (/forum)

  1. Anyone can read without logging in · to post, reply or vote you need to log in
  2. Tap new topic, choose a category, write your question and attach photos — the name shown is the part of your email before the @, never the full email

Materials Q&A (/qa-material)

A room for in-depth material questions, with AI giving a first answer instantly

8. Seller guide — from opening a store to getting paid

  1. Register a store: market → register a store → store name, contact details
  2. Verify identity: upload your ID card + bank book (files are stored privately, only admins can open them, and the review link expires on its own) — you can sell once your status is "Verified"
  3. Add product: at least 1 photo (3–5 angles recommended, good light, plain background) · a name people actually search for, e.g. "Elephant brand cement 50 kg", not "quality product" · category, price, unit, stock · you can settiered prices (e.g. one price for 1–49 bags, another for 50+) and aminimum order— prices are calculated automatically from the quantity ordered
  4. Awaiting review: new products go into the admin review queue before going on sale
  5. Receive orders: a notification pops up when an order comes in → accept → pack and ship → enter the tracking number (the customer sees it immediately)
  6. Respond to RFQs: open the RFQ tab to see quotation requests from large buyers and submit your store's price (other stores can't see each other's prices) — you can change your price until bidding closes
  7. See your money: store dashboard /seller sales summary · "My earnings" shows pending payouts and payout history
  8. Public storefront: customers can view your store at /shop/your-store-name — make your profile trustworthy in store settings
Screenshot d_seller_profile

9. Hiring professionals

10. AI assistants everywhere, and usage quotas

Which AIatWhat it does for you
Site photo analysis/finalPhotograph construction work and AI says what the work is, which spots to check, and the materials used with price ranges
Scan receiptsProject management → expensesPhotograph a receipt and AI fills in the amount/store/category — check it and tap save
Title deed reader/land-calcPhotograph a title deed and AI extracts the area to continue calculating right away
Ask about your homeFloating button on every pageAsk anything about your home or using the site
AI material picker/material-advisorDescribe your job (budget, area, style) and AI recommends suitable materials
Construction cost estimate / material calculator / building lawProject management + marketStarting figures and basic answers on legal points
Contract summary / meeting summary / delay analysisProject managementDigests project documents and data into plain language
Quota: heavy tasks (image/title deed analysis/budget breakdown) free 5 times per day — today's quota is used up; it resets tomorrow · general text Q&A can be used 50 times per day · AI answers are input for your decisions; important work should always be confirmed by an expert

11. Account, privacy and help

12. FAQs

Do I have to pay? — the core tools are free: project management, documents, calculators, gallery, community · heavy AI tasks are free 5 times a day · costs only arise when you actually buy in the market or hire a service

Who can see my financial data? — only you and the people you appoint. Contractors see only the value of their own milestones; relatives you share with see only progress (unless you let them see the budget)

Can photos a tradesperson submitted for a milestone be deleted? — No. Milestone evidence photos are sealed the moment they're submitted, so both sides have the same set to refer to if they disagree (withdrawing a milestone requires a reason and is logged)

Problem with an order — what do I do? — open the order at /orders → tap report a problem/open a dispute and attach photo evidence; an admin will help mediate based on both sides' evidence

Can I use it on my phone? — Yes, every page, and you can add it to your home screen to use like an app (your browser will offer "Add to Home screen"). The site photo upload page works even with no signal

Forgot your password? — if you signed in with Google before, just tap the Google button · email accounts: enter your email and tap "Forgot password" under the password box; we'll email you a reset link (if you can't find it, check your spam folder)

Want to close your account and delete your data? — submit a request at /pdpa/my-data The system records the request and handles it under the Personal Data Protection Act

This guide was prepared from the live system as of August 22, 2026 — the actual screens may differ slightly from the images as the system is updated