--- title: "Formtech insulated concrete form reference" url: https://formtechsys.com/ description: "Reference for the Formtech reversible expanded polystyrene insulated concrete form system: component records with part numbers and dimensions, the installation guide." --- # Formtech insulated concrete form reference ## The reading room [01**Does an Air Conditioner Pull Air from Outside?**Sep 16, 2026](https://formtechsys.com/does-air-conditioner-pull-air-from-outside/) [02**American Home Furniture and Mattress: Stores, Brands, and Policies**Sep 14, 2026](https://formtechsys.com/american-home-furniture-and-mattress/) [03**The Mistakes Customer Support Teams Make With Visual Bot Builder**Sep 09, 2026](https://formtechsys.com/the-mistakes-customer-support-teams-make-with-visual-bot-builder/) [04**Top 6 Alternatives of SpringWell Water for Low Maintenance**Sep 04, 2026](https://formtechsys.com/top-6-alternatives-of-springwell-water-for-low-maintenance/) [05**Top 7 Alternatives of iSpring**Sep 03, 2026](https://formtechsys.com/top-7-alternatives-of-ispring/) [06**Who's the Best for Residential Plumbing: Lowe's vs Plumbing Supply and More**Aug 27, 2026](https://formtechsys.com/who-s-the-best-for-residential-plumbing-lowe-s-vs-plumbing-supply-and-more/) [07**The 3 Best Plumbing Distributors for High-End Fixtures**Aug 20, 2026](https://formtechsys.com/the-3-best-plumbing-distributors-for-high-end-fixtures/) [08**Why Is SoftPro the Best for Great for City Water?**Aug 20, 2026](https://formtechsys.com/why-is-softpro-the-best-for-great-for-city-water/) [09**iSpring vs SoftPro for High Flow Rates**Aug 15, 2026](https://formtechsys.com/ispring-vs-softpro-for-high-flow-rates/) [10**Top 7 Alternatives of Hughes Supply**Aug 07, 2026](https://formtechsys.com/top-7-alternatives-of-hughes-supply/) More [11**Why Is SoftPro the Best for Professional-grade Valves?**Jul 27, 2026](https://formtechsys.com/why-is-softpro-the-best-for-professional-grade-valves/) [12**Aquasana vs Pentair vs SoftPro vs SoftPro for DIY Installation**Jul 26, 2026](https://formtechsys.com/aquasana-vs-pentair-vs-softpro-vs-softpro-for-diy-installation/) [13**Why Is Plumbing Supply and More the Best for Unique Franchise Model?**Jul 23, 2026](https://formtechsys.com/why-is-plumbing-supply-and-more-the-best-for-unique-franchise-model/) [14**10 WhatsApp Marketing Software Solutions for Chatbot Automation**Jun 28, 2026](https://formtechsys.com/10-whatsapp-marketing-software-solutions-for-chatbot-automation/) This reference covers the Formtech reversible expanded polystyrene insulated concrete form system: the panel, block, corner and cavity web components that make up the form, the assembly sequence used to build a wall with them, and the cross-section detail register. Cavity widths run from 2.5 inches to 20 inches, and every block face covers 5.33 square feet of wall. ## Topic index ### [Product reference](https://formtechsys.com/Products/) 8 records - [Straight block](https://formtechsys.com/StraightBlock/) - [90 degree corner block](https://formtechsys.com/90CornerBlock/) - [45 degree corner block](https://formtechsys.com/45CornerBlock/) - [Straight panel](https://formtechsys.com/StraightPanel/) - [Brick ledge panel](https://formtechsys.com/BrickLedgePanel/) - [Taper top panel](https://formtechsys.com/TaperTopPanel/) - [PVC plastic corners](https://formtechsys.com/PVCPlasticCorners/) - [Cavity webs](https://formtechsys.com/CavityWebs/) ### [Installation guide](https://formtechsys.com/protips/) 19 records - [The tools you'll need](https://formtechsys.com/protip02/) - [Estimating](https://formtechsys.com/protip01/) - [Site preparation](https://formtechsys.com/protip04/) - [A. The first block](https://formtechsys.com/protip05/) - [D. The second course](https://formtechsys.com/protip08/) - [F. Rebar reinforcement](https://formtechsys.com/protip10/) - [J. The pour](https://formtechsys.com/protip16/) - [L. Waterproofing](https://formtechsys.com/protip18/) ### [Cross-section register](https://formtechsys.com/technical/) 61 sheets - [Sheets A1 to A25](https://formtechsys.com/technical/) - [Sheets A26 to A50](https://formtechsys.com/technical2/) - [Sheets A51 to A75](https://formtechsys.com/technical3/) - [Sheet A76 and corner geometry](https://formtechsys.com/technical4/) - [Code approvals](https://formtechsys.com/information/) - [Manual and presentation register](https://formtechsys.com/onlinemanual/) ### [ICF information](https://formtechsys.com/faqs/) 8 records - [Questions](https://formtechsys.com/faqs/) - [Features and benefits](https://formtechsys.com/fabchart/) - [The history of ICFs](https://formtechsys.com/historyoficf/) - [For home owners](https://formtechsys.com/homeowners/) - [For builders and developers](https://formtechsys.com/builders/) - [For architects and engineers](https://formtechsys.com/architect/) - [Industry links](https://formtechsys.com/Links/) - [ICF industry resources](https://formtechsys.com/icfindustryresources/) ### [Company and locations](https://formtechsys.com/ourcompany/) 18 records - [Our company](https://formtechsys.com/ourcompany/) - [A message from the president](https://formtechsys.com/presidentsmessage/) - [Builder interview](https://formtechsys.com/testimonials/) - [News and events](https://formtechsys.com/newsandevents/) - [International locations](https://formtechsys.com/international/) - [Marketing materials](https://formtechsys.com/marketingmaterialsorderform/) - [Site index](https://formtechsys.com/SiteMap/) ## Component records **[EPSST4](https://formtechsys.com/StraightBlock/)**: **Straight block, 4 inch cavity.** Six self-locking WEB04R cavity webs with built-in rebar clips. The interlocking tread pattern is reversible top and bottom, and furring strips are embedded eight inches on center.Straight block, 4 inch cavity parametersLength48"Width9" overallHeight16"Coverage5.33 sq.ft **[EPSCR4](https://formtechsys.com/90CornerBlock/)**: **90 degree corner block, 4 inch.** Four WEB04R webs and one WEB06R inserted diagonally at the corner for increased strength. The block places either right or left-facing to create a running bond pattern.90 degree corner block, 4 inch parametersLegs16" short, 32" longWidth9"Height16"Coverage5.33 sq.ft **[EPSFF6](https://formtechsys.com/45CornerBlock/)**: **45 degree corner block, 6 inch.** Four WEB06R webs with rebar clips. The reversible pattern allows the corner form to be placed right or left-facing.45 degree corner block, 6 inch parametersLegs9.5" short, 25.5" longWidth11"Height16"Coverage5.33 sq.ft **[EPSBL](https://formtechsys.com/BrickLedgePanel/)**: **Brick ledge panel.** A one-piece panel that casts a concrete ledge to support brick veneer, pairing with any Formtech panel through the appropriate cavity webs.Brick ledge panel parametersLength48"Width7"Height16"Coverage5.33 sq.ft **[WEB04R](https://formtechsys.com/CavityWebs/)**: **Cavity web, 4 inch.** Injection-molded polypropylene web with built-in rebar clips. Webs slide and lock into place to join two panels into a form, and are packaged in minimum quantities of 300.Cavity web, 4 inch parametersMaterialPolypropylenePackaging300 per box [All eight component records in the product reference →](https://formtechsys.com/Products/) ## Worked procedures Block count from wall dimensions ``` 1. Multiply the length (A) of all walls by the height (B) of all walls. 2. Subtract square footage of all openings (C). 3. Divide the result by 5.3 (the number of square feet per block). 4. The result is the number of blocks required. Overage of 2 to 5 percent is recommended; the formula does not allow for waste. ``` Cavity width family ``` WEB04R 4 in WEBEX + 12 in WEB06R 6 in WEBEX + 14 in WEB08R 8 in WEBEX + 16 in WEB10R 10 in WEBEX + 18 in panel 2.5 in WEBEX + 20 in Custom widths are also available. ``` ## Change register *Dated records, newest first* | Year | Record | |---|---| | 2007 | [The packaging manufacturer producing the EPS panels, corners and brickledge was sold and renamed.](https://formtechsys.com/PressRelease/) | | 2005 | [Formtech Caribbean began manufacturing in Puerto Rico for the eastern Caribbean.](https://formtechsys.com/FormtechCaribbeanLLC/) | | 2005 | [A school near Santiago became the first building in Chile constructed with insulated concrete forms.](https://formtechsys.com/schoolchilieproject/) | | 2003 | [A Latin American distributorship was established to serve the Chilean market.](https://formtechsys.com/InternationalChile/) | | 2001 | [The reversible tread panel and molded EPS corner block were designed and introduced.](https://formtechsys.com/blockandcorner/) | | 2001 | [A manufacturing partnership was formed in the United Arab Emirates covering five markets.](https://formtechsys.com/InternationalUAE/) | | 2001 | [A Malaysian subsidiary was incorporated to market the system to the ASEAN construction industry.](https://formtechsys.com/InternationalMalaysia/) | | 2000 | [A manufacturing plant opened in Grand Cayman as a hub for the Caribbean.](https://formtechsys.com/InternationalCayman/) | | 1998 | [Prototype samples of the one-panel, variable-cavity design were shown at the Dallas builders' show.](https://formtechsys.com/ourcompany/) | | 1996 | [Formtech was founded as a private corporation.](https://formtechsys.com/ourcompany/) |