Handoff uses two primary sources to determine quantities for construction estimates:
Your Project Description
Industry Standards
Project Description
Handoff uses the information you provide, such as:
Square footage
Number of rooms
Specific features (EX: walk-in shower, complete kitchen)
Industry Standards
When specific details aren't provided, Handoff makes assumptions based on common industry standards:
Average room dimensions (EX: 10x10 bedrooms)
Standard ceiling heights (EX: 8-9 feet)
Typical roof pitches
Common layout configurations
Standard material coverages (EX: 250-350 sqft per gallon of paint)
Examples of Standard Assumptions
Stud spacing (EX: 16" OC)
Shower sizes (EX: 100 sqft of wall tile per shower)
Kitchen layouts (EX: 15 linear feet of cabinets for a 400 sq ft ADU)
Countertop depths (EX: Avg kitchen countertop is 2' deep)
Appliance and fixture counts (EX: 4-5 appliances per kitchen)
Lighting requirements (EX: 4 recessed lights per 10x10 room)
Accuracy Improvement
The more detailed information you provide, the more accurate Handoff's quantities will be. Without specific details, Handoff uses averages to provide a reasonable starting point.
Calculation Method
Handoff uses ratios and standard measurements related to the total square footage to determine quantities for various components. We know how many sqft we can cover for each bag of mortar, how many bags of concrete per CY, how many lights per SQFT of room, how much wiring per fixture, etc.
Remember: While Handoff strives for accuracy, always review and adjust quantities based on your specific project details for the most precise estimate.