NUDURA forms are designed to make measuring as easy as possible for the installer. 


Each interlock along the top and bottom of the form is 1 inch, the score line on the outside of the form panel denotes 2 inches, and fastening strips are located every 8 inches (200mm) on center.

Indicated on the surface of the form by a diamond pattern, these fastening strips are continuous up the full height of the form unit, and have a patented mechanism that interlocks one fastening strip to the one below or above. The strips are 1 ½ inches wide and have a higher pull out strength than a dimensional stud.

Use the three above measurements to find where you need to make your cut to achieve your desired length of wall.

It’s important to remember that different types of cladding will have different installation procedures. For vinyl siding, you will want to use a standard #6 x 1 ½” to 1 ¾” coarse thread, ‘bugle’ style or ‘flute’ head (1/4 inch diameter head) zinc coated or other non-corrosive screw.

NOTE: As inexpensive as they are, drywall screws with the black sulphur coating will eventually corrode.

Equally useful are standard bright (i.e. chrome) finish #6 x 1 ½” pan-head, coarse thread self-tapping screws. As an added bonus, these can be used for a multitude of anchorage purposes besides siding fastening, and do not corrode as easily as drywall screws.