American-made SIPs · Since 1987
Structural Insulated Panels, Precut to Your Drawings
Framing, sheathing, and insulation are three trades, three weather windows, and a labor number you are guessing at. Murus SIPs arrive CNC-cut, labeled, and sequenced — so your crew sets a weather-tight shell up to 55% faster and you bid the labor instead of hoping. Wall, roof, and floor, in one engineered panel.
55%+ faster
To a weather-tight shell
CNC precut
Labeled and sequenced to your plans
ICC-ES
Evaluated: ESR-4784 & ESR-4689
Since 1987
Made in Pennsylvania
You get paid to build, not to chase three trades
Most builders lose the same three things on every shell they frame.
Schedules that slip
Framing, sheathing, and insulation are three trades and three weather windows. One rain week pushes every trade behind it.
Labor you can’t bid
Field cutting and waste turn your biggest line item into a guess. You find out what the shell really cost after the job closes.
Callbacks after you’re paid
Drafts, cold floors, and ice dams come back months later. The homeowner calls you — not the framer who left.
One manufacturer. Three panel cores.
The right fit for every project.
Most SIP companies make you build around one foam core. Murus makes all three — so the panel fits your performance target and your budget, not the other way around.
Polyurethane (PUR)
R-27 to R-41
Our highest R-value per inch — R-27 to R-41. For thin walls and demanding climates. Patented cam-lock system for the tightest seal and fastest installation.
Explore PUR SIPs →
Graphite (GPS)
R-18 to R-67
NEOPOR® graphite foam from BASF delivers ~20% more R-value than standard EPS at the same thickness — R-18 to R-67. The smart middle choice.
Explore GPS SIPs →
Expanded Polystyrene (EPS)
R-15 to R-55
The proven, cost-effective workhorse core — R-15 to R-55. Lowest cost of the three Murus cores. Jumbo widths up to 8′.
Explore EPS SIPs →What your crew gets on site
⚡
Build faster
Weather-tight enclosures up to 55% sooner, cutting labor cost and schedule.
🌡
Spend less to heat and cool
SIP buildings typically lower HVAC costs 40–60% thanks to minimal thermal bridging.
🌿
Live more comfortably
Fewer drafts, quieter rooms, better air quality.
🌳
Build greener
A straightforward path to LEED and NGBS certification.
Three steps from drawings to a dried-in shell
No new trade to hire, and a Murus tech rep on the phone from first drawing to final panel.
Send us your drawings
Plans, sketches, or a CAD file. A Murus specialist reviews them personally and comes back with a panel layout and a quote — usually within one business day.
We precut your panels
Every panel is CNC-cut to your drawings in Mansfield, PA, labeled and sequenced, then delivered to the site in the order your crew will set them.
Your crew dries in fast
Walls, roof, and floor go up as finished assemblies. You reach a weather-tight, well-insulated shell up to 55% faster than stick framing.
Who you are on this project
American-made in Pennsylvania since 1987
Murus panels are manufactured in Mansfield, PA, and shipped across the U.S. and Canada. More than 35 years of SIP expertise, precut and custom panels, and technical support from first drawing to final panel.
From our floor to your jobsite
Precut in Mansfield, delivered sequenced, set by your crew.
Get a free SIP quote
Tell us about your project and a Murus SIP specialist — not a bot — reviews every request personally, usually within one business day.
Prefer to talk? Call 800-626-8787
Structural insulated panel FAQ
SIPs are prefabricated building panels made of an insulating foam core bonded between two structural facings (typically OSB). They replace framing, insulation, and sheathing with one engineered component.
SIP panels typically run about $10–$18 per square foot for materials, depending on core type, thickness, and R-value. Request a free quote for project-specific pricing.
For most projects, yes: SIPs build faster, cut heating and cooling costs 40–60%, and typically pay back the premium in about 3–7 years through energy savings.
Murus manufactures in Mansfield, PA and serves the U.S. and Canada. Contact us for delivery to your site.