Description
WooCommerce Plugin
Advanced Construction Calculator
Stop customers from under-ordering flooring because they forgot wastage. Stop them from over-ordering because they rounded wrong. Visual area calculator handles the math. Customer enters 10m² room dimensions. Calculator adds 10% wastage (11m²). Divides by 1.44m² box size. Rounds up to 8 boxes. Shows exact quantity. Subtracts windows and doors. No mental math. No returns. No second shipping runs. Accurate orders every time. Theme inherited.
Wastage Calculation
Box Rounding
Obstacle Subtraction
No Mental Math
The flooring order disaster
Customer needs tiles for 10m² bathroom. Forgets 10% wastage. Orders exactly 10m². Tiles arrive in 1.44m² boxes. Customer gets 7 boxes (10.08m²). Starts laying tiles. Realizes at 90% completion: not enough. Cuts and breakage consumed 1m². Now 0.92m² short. Returns to store for 1 more box. Shipping costs $40. Customer frustrated. Merchant loses money on return shipping. Alternative: customer over-estimates. Orders 15 boxes (21.6m²). Way too much. Returns 8 boxes. Restocking fee. Everyone loses time and money. Calculator solves this completely. Customer enters 10m² room. Calculator adds 10% wastage automatically (11m²). Divides by 1.44m² box. Rounds UP to 8 boxes (11.52m² coverage). Perfect. No under-ordering. No over-ordering. Accurate every time.
Wastage Calculation
Customer enters 10m² room. Calculator adds 10% wastage automatically (11m² total). Accounts for cuts, breakage, pattern matching. Configurable per product: 10% for standard, 15% for herringbone. Always accurate.
Box Rounding Logic
Tiles sold in boxes. 1 box covers 1.44m². Need 11m² total. Calculator divides: 11 ÷ 1.44 = 7.63 boxes. Rounds UP to 8 boxes (11.52m² coverage). No partial boxes. No under-ordering. Always enough material.
Obstacle Subtraction
Wall is 3m × 5m (15m²). Has window 2m × 1.5m (3m²) and door 1m × 2m (2m²). Calculator subtracts: 15m² total, minus 3m² window, minus 2m² door, equals 10m² net. Light CAD functionality. Accurate room calculations.
Visual Interface
No mental math required. Customer enters room length and width in simple form. Clicks calculate. Plugin shows net area, wastage, total needed, boxes required, coverage provided. Clear breakdown. Add to cart with exact quantity. Zero confusion.
Why manual calculation fails
Tile retailer sells boxes covering 1.44m² each. Customer needs bathroom floor. Measures: 3.2m × 3.1m. Pulls out phone calculator. 3.2 × 3.1 = 9.92m². Forgets wastage percentage. Orders 9.92m² worth. Cannot order 9.92m² directly because sold in boxes. Estimates: 9.92 ÷ 1.44 = 6.88 boxes. Rounds to 7 boxes. Tiles arrive. Starts laying. Cuts tiles around toilet, sink pedestal. Breaks 2 tiles during cutting. Gets to 90% complete. Short 1m². 7 boxes provided 10.08m², but cuts and breakage consumed 10.92m². Now must reorder 1 box. Shipping costs $40 extra. Total cost higher. Time wasted. Customer frustrated. This happens constantly. Mental math fails. Customers forget wastage. Round incorrectly. Under-order. Or over-estimate wildly and return excess. Calculator eliminates this.
Customers forget wastage percentage entirely
Room is 10m². Customer calculates 10m² exactly. No wastage added. Orders 10m². Tiles arrive. Customer cuts around fixtures. Breaks tiles. Pattern matching requires extra. Gets to 9m² covered. Only 1m² left but need 1.5m² more to finish. Short material. Must reorder. Return shipping trip. $40 shipping cost. Time lost. Customer blames store for not warning about wastage.
Box rounding done wrong causes under-ordering
Need 11m² with wastage. Box covers 1.44m². Math: 11 ÷ 1.44 = 7.63 boxes. Customer rounds DOWN to 7 boxes (trying to save money). Gets 10.08m². Not enough. Should have rounded UP to 8 boxes (11.52m²). Now short material. Reorder 1 more box. Extra shipping. Extra time. Calculator always rounds UP automatically. Never under-orders.
Calculator: Enters 3.2m × 3.1m. Adds 10% wastage. Divides. Rounds up. Perfect.
Customer enters length 3.2m and width 3.1m in calculator form on product page. Clicks calculate. Plugin computes: 3.2 × 3.1 = 9.92m² net. Adds 10% wastage: 9.92 × 1.1 = 10.91m² total. Divides by box size: 10.91 ÷ 1.44 = 7.57 boxes. Rounds UP to 8 boxes. Shows customer: “You need 8 boxes (11.52m² coverage)”. Customer adds to cart. Perfect quantity. No under-ordering. No confusion. Accurate every time. Zero returns.
🏠 Real Example: Bathroom Tile Order
Before: Customer does mental math, under-orders
Bathroom 3.2m × 3.1m = 9.92m². Customer thinks “about 10m²”. Tiles sold in boxes, 1.44m² per box. Customer calculates 10 ÷ 1.44 = 6.94, rounds to 7 boxes. Forgets wastage percentage completely. Orders 7 boxes. Tiles arrive (10.08m² total). Customer starts installation. Cuts tiles around toilet (0.3m² waste), sink pedestal (0.2m² waste), breaks 2 tiles during cutting (0.4m² waste). Gets to 90% done. Realizes: only covered 9.2m² with 10.08m² material. Still need 0.72m² more to finish room. Calculator shows need 7.57 boxes worth but only ordered 7. Short material. Must reorder 1 box. Pay $40 shipping. Wait 3 days. Project stalled. Customer frustrated. Blames store.
After: Calculator handles everything, perfect order
Product page shows calculator form. Customer enters length “3.2” and width “3.1”. Checks “Include wastage” box (pre-filled 10%). Clicks calculate. Plugin shows: “Net area: 9.92m², Wastage: +0.99m², Total: 10.91m² → 8 boxes needed (11.52m² coverage)”. Customer sees breakdown clearly. Clicks “Add to Cart”. 8 boxes added automatically. Tiles arrive. Customer installs. Cuts, breaks, wastes consume 1m². Still has 11.52m² total coverage. Completes bathroom perfectly with 0.61m² leftover (acceptable). Zero return trips. Zero extra shipping. Accurate order. Customer happy. Store profitable.
🎨 Wallpaper Store with Obstacles
Challenge: Living room wall 5m × 2.5m (12.5m²). Has large window 2m × 1.2m (2.4m²) and doorway 1m × 2m (2m²). Customer needs accurate wallpaper calculation minus obstacles.
Solution: Calculator “Areas to Cover”: Wall 5m × 2.5m. “Obstacles to Subtract”: Window 2m × 1.2m, Door 1m × 2m. Wastage 15% (wallpaper pattern matching). Calculate shows: Net 12.5m², minus obstacles 4.4m², equals 8.1m² net. Plus 15% wastage = 9.32m². Wallpaper rolls cover 5m² each. Need 1.86 rolls, rounds to 2 rolls (10m² coverage). Perfect.
Result: Customer orders exactly 2 rolls. No mental subtraction of window and door areas. No forgotten wastage. No over-ordering. Calculator handled light CAD obstacle math automatically. Professional accuracy for DIY customer.
Complete feature set
Professional area calculator for construction materials. Wastage calculation, box rounding, obstacle subtraction, multiple areas. Stop under-ordering, over-ordering, mental math errors. Accurate quantities every time.
📐 Area Calculation
• Length × width calculation
• Multiple areas support
• Add rooms separately
• Complex room shapes
• L-shaped layouts
• Multiple wall sections
• Sum all areas automatically
• Visual interface
% Wastage Calculation
• Automatic wastage addition
• Configurable percentage
• 10% standard patterns
• 15% herringbone complex
• Per-product settings
• Customer can toggle on/off
• Accounts for cuts, breaks
• Pattern matching allowance
📦 Box Rounding Logic
• Divides by box size
• Rounds UP always
• Never under-orders
• Whole box quantities
• Per-product box size
• 1.44m² tile boxes
• 5m² wallpaper rolls
• Shows total coverage
🚪 Obstacle Subtraction
• Subtract windows
• Subtract doors
• Subtract fireplaces
• Kitchen islands
• Any excluded area
• Light CAD functionality
• Multiple obstacles
• Accurate room calculation
⚙️ Product Configuration
• Enable per product
• Set box/pack size
• Set wastage percentage
• Product Data panel
• Simple checkbox enable
• Global settings override
• Configure once per product
• Works immediately
🎨 Technical Features
• Theme style inheritance
• Zero styling conflicts
• AJAX calculation
• Real-time results
• Cart integration
• Calculation summary shown
• HPOS compatible
• WooCommerce 8.0+ ready
Perfect for
Tile & Flooring Stores
Tiles, laminate, hardwood, vinyl sold by box. Customers cannot calculate area + wastage + box rounding mentally. Calculator handles everything. Customer enters room size. Plugin shows exact boxes needed. No under-ordering. No returns.
Wallpaper Retailers
Wallpaper sold by roll. Complex pattern matching requires 15% wastage. Walls have windows and doors to subtract. Calculator does obstacle subtraction automatically. Customer gets accurate roll count. Zero confusion.
Paving & Landscape Supplies
Paving stones, pavers, decking boards. Outdoor projects with irregular shapes. Calculator handles multiple area sections. Subtracts planters, trees, obstacles. Adds wastage for cuts. Accurate material estimates.
Construction Material Suppliers
Any material sold by area coverage. Insulation, roofing, drywall, paint (coverage per gallon). Calculator ensures customers order correct quantity first time. Reduces returns, support calls, shipping costs.
Common use cases
Use Case 1: Simple Bathroom Floor
Customer enters length 3.2m, width 3.1m. Calculator shows 9.92m². Adds 10% wastage (10.91m²). Divides by 1.44m² box size. Rounds up to 8 boxes. Shows “8 boxes provide 11.52m² coverage”. Perfect order. Zero confusion.
Use Case 2: L-Shaped Living Room
Complex room. Area 1: 5m × 4m (20m²). Area 2: 3m × 3m (9m²). Customer adds both in calculator. Total 29m². Wastage 10% = 31.9m². Laminate boxes 2.5m² each. Need 12.76 boxes, rounds to 13 boxes (32.5m²). Multiple areas handled automatically.
Use Case 3: Wall with Window and Door
Wallpaper calculation. Wall 5m × 2.5m (12.5m²). Subtract window 2m × 1.2m (2.4m²). Subtract door 1m × 2m (2m²). Net area: 8.1m². Wastage 15% pattern matching = 9.32m². Rolls 5m² each. Need 1.86 rolls, rounds to 2. Obstacle math done automatically.
Use Case 4: Patio with Irregular Shape
Patio 6m × 4m (24m²). Has circular planter in center (estimated 3m²). Customer adds main area 6m × 4m. Adds obstacle 3m² manually. Calculator: 24m² minus 3m² = 21m² net. Wastage 10% = 23.1m². Pavers 0.5m² each box. Need 46.2 boxes, rounds to 47. Accurate paver quantity.
🚀 Setup Process
Step 1: Install and activate plugin (WooCommerce required)
Step 2: Edit product → Product Data → General → Check “Enable Calculator”
Step 3: Set box size (e.g., 1.44 for tiles) and wastage % (e.g., 10)
Step 4: Save product. Calculator appears on product page automatically.
Step 5: Customers enter dimensions, calculate, add to cart with correct quantity.
Frequently asked questions
How does box rounding work?
Calculator divides total area needed by your box size, then rounds UP to nearest whole number. Example: 11m² needed, box covers 1.44m², equals 7.63 boxes, rounds to 8. Always rounds up to ensure enough material.
Can customers turn off wastage?
Yes. Wastage checkbox can be unchecked if customer wants exact area only. Default is checked with your configured percentage. Most customers should keep it on to avoid under-ordering.
What measurement units are supported?
Square meters (m²), square feet (ft²), and square yards (yd²). Configure in global settings. All calculations adjust automatically based on selected unit.
Does this work with variable products?
Calculator works with simple and variable products. Enable on parent product. Box size and wastage settings apply to all variations. Customer calculates once, then selects variation (color, finish).
How do obstacles work?
Customer clicks “Add Obstacle” button. Enters dimensions of window, door, or any excluded area. Calculator subtracts obstacle area from total automatically. Light CAD functionality for accurate room calculations.
Will this work with my theme?
Yes. Calculator inherits all styling from your active theme. Matches colors, fonts, buttons automatically. Zero styling conflicts. Works with any WooCommerce-compatible theme.
What about complex room shapes?
Customer can add multiple areas separately. L-shaped room: Area 1 (5m × 4m) + Area 2 (3m × 3m). Calculator sums all areas. Handles any room complexity through multiple rectangular sections.
What about updates and support?
One-time purchase includes lifetime updates. Future WordPress compatibility free. Future WooCommerce compatibility free. No renewal fees. No expiration. Pay once, own forever.
Technical requirements
WordPress
6.0 or higher
WooCommerce
8.0 or higher
PHP
8.2 or higher
Compatibility
HPOS & All themes
