Enter three things. We compare the full delivered cost of a SIP shell against conventional stick framing, including schedule, waste, and quality costs most bids leave out.
Estimated savings with SIPs
$ —
Schedule— days faster
Stick framing total—
SIP total—
Fill in ZIP, square footage and basement above. The estimate appears instantly, no signup, nothing to submit.
Where the money goes cost categories that differ by method
Line by line every number shows its math
Item
Stick framing
SIPs
SIP advantage
The 30-year picture first cost plus every utility bill after
Expected, 3.5%/yrRange, 2.4% to 7.0%/yrBreak-even line
Assumptions every default is editable and sourced
Adjust assumptions
defaults from SIPA, NAHB, IBACOS
Refine this estimate the three inputs that matter most
Directional estimate only. This tool models national and regional industry averages from the sources labeled on each assumption. Actual SIP package quotes, framing bids, labor rates, and lender carrying costs vary by supplier, design complexity, and market. Replace the defaults above with your real bid numbers before using this in a budget. This is not a quote and not a substitute for supplier pricing.
On the 30-year projection. Future energy prices cannot be known. The range shown spans EIA's long-range outlook on the low end and recent year-over-year increases on the high end; the expected line uses the actual 2001 to 2026 compound rate for US residential electricity. Heating and cooling loads are modeled from regional climate averages, not from your plans or a load calculation. The 35% default is deliberately conservative against a house built to current code; published figures of 50 to 60% are measured against the 2006 IECC and are not comparable. Figures are nominal dollars, not discounted to present value.