• For Recesses that have already been formed
• Requires a 1-3/4″ Recess Depth
• The 424 Frame screws into the pit floor up against the pit wall 
• We make the outside dimension of the frame to fit the pit and then the mat fits inside the frame
• 1/8″ Gauge aluminum reveal 
• The frame is necessary to protect the surrounding flooring from damage caused by carts and wheeled traffic.

• The 420 Frame is designed to be set in wet concrete
• Lag bolts hold frame tightly in place after concrete sets
• Once the frame is set, the Recessed Foot Grille drops in place
• 1/2″ Gauge aluminum reveal
• Make certain to take thickness of finish floor into account when setting the 420 Frame

• Available with or without a drain pan 
• Specify:  420x423x422 with Pan or 420x423x422 Without Pan
• Allows for a deeper recess depth of 2-23/32″ depth
• Cross Supports under the Foot Grille allows for larger quantities of liquids to be retained
• Surface reveal is 1/2″ – Lag Bolts Hold Frame Fast
• Make certain to take thickness of finish floor into account when setting the 420-422 Frame
• Frames can be shipped ahead of mats upon request

• The 421 Frame is the stoutest Recessed Frame 
• Allowing for a Recess depth of over 4″, with lag bolts and vertical cross supports
• The 421 Frame should be used when large amounts of liquids from rain and snow are anticipated.
• Make certain to take thickness of finished floor into account when setting frame 421 
• Available with or without a drain pan 
• Frames can be shipped ahead of mats upon request

Call  800-739-6171 for Assistance or email us at help@madmatter.com