Explore an architectural-asphalt replacement budget with roof area, pitch and the real limits of the planning model.
Free roof inspectionA closer look at the roof
Repair or replacementWork that fits the condition
Homes and commercial roofsThe right scope for the building
Use the Roof Area You Know
Keep the 2,000 sq. ft. example or enter a roof area you already know. A measured roof surface gives the most direct result. If you use the area covered by the roof, the pitch setting converts that footprint into surface area.
The supported example is architectural asphalt in the Oklahoma / OKC area. It covers 1,500 to 3,000 sq. ft. of roof surface, with one existing layer, usable decking, normal access and moderate complexity. The tool handles the conversion and range; you do not need to climb the roof to use it.
Try a Roof Replacement Planning Example
A 2,000 sq. ft. measured roof-surface example gives $9,000 to $15,000 under the stated assumptions. Change the example to understand area and slope, then discuss the actual roof condition.
Keep the 2,000 sq. ft. example, or enter an area you already know. Roof footprint means the area covered, not total living space.
Keep the 6:12 example unless you already know the pitch. Pitch helps check material suitability.
Planning budget example
Planning example for 2,000 sq. ft. of actual roof surface, using architectural asphalt shingles. Ordinary tear-off is included.
Normal access, moderate roof complexity, one existing layer and usable decking. Additional layers, damaged wood and separate trades change the project price.
Architectural-asphalt planning range for 1,500 to 3,000 sq. ft. of measured roof surface.
Oklahoma / OKC area planning figures, checked October 27, 2026.
What this planning example includes
This Oklahoma / OKC-area model uses $4.50 to $7.50 per measured roof-surface square foot for architectural asphalt shingles, within a supported 1,500 to 3,000 sq. ft. range. It assumes normal access, moderate complexity, one existing layer and usable decking.
Known roof surface uses the entered area directly. Roof footprint is converted using the example pitch. Living-space square footage is not roof area. Keep the example if you do not know your roof dimensions.
Ordinary removal of one layer is included. Extra layers, damaged decking, structural repairs and separately scoped gutters, skylights, electrical or mechanical work require a property-specific allowance.
Understanding the Calculator Result
Roof surface and footprint
Surface is the area of the sloped roof itself. Footprint is the area it covers when viewed from above. A steeper roof has more surface than the same footprint at a shallow pitch. Total living space can include a second floor and should not be entered as roof area.
Included and separate work
The range includes ordinary removal of one layer and an architectural-asphalt replacement over usable deck. Extra layers, damaged wood, structural work and separately scoped gutters, skylights or equipment trades need their own allowance.
When the example does not fit
The tool holds the model to its supported surface range. Asphalt shingles also need a suitable pitch. A low-slope assembly, commercial membrane or metal project needs a system-specific conversation rather than a shingle rate.
Roof Cost Calculator FAQs
Can I use the example without measuring my roof?
Yes. Keep the example to see a planning range. The actual roof is measured for the project, and you do not need to climb it or work out the slope yourself.
Why does changing pitch change a footprint result?
Pitch changes how much sloped roof surface covers a given footprint. With known roof surface selected, the area is already measured along the roof, so it is not multiplied by pitch again.
Why is there no result for a very large or small roof?
This model supports 1,500 to 3,000 sq. ft. of roof surface. Use an example inside that range or contact us about a roof outside it; extending the same rate is not a supported estimate.