Interior Components
Crawlspace Access Door
Over 4.25 Million units sold.
An underfloor inspection port with excellent load capacity.
This product has been chosen and used repeatedly by many construction companies for its high quality. *As of the end of January 2021
LINE UP
SPF-R series
Durable and airtight underfloor inspection port.
SPF-R-UA series
A heat-insulating material is built into the highly airtight underfloor inspection port.
SPF-R-BC series
Insulation is added to the highly airtight underfloor inspection port.
SPF-R-BL series
Pursuing even higher heat insulation for cold regions.
SPF-R-9060F12
A large type is now available at the highly airtight underfloor inspection port.
SPF-R-90F12-UA1
Large type with built-in heat insulating material.
SPF-S series
Just set it in the inspection port for convenient storage.
SPF-KS
Make the underfloor storage even more convenient.
BU-SPF series
Further peace of mind when using on the second floor.
SPF-R-3030F12
A new compact size lineup.