|Forum topic by ondablade||posted 08-30-2009 01:20 PM||1437 views||0 times favorited||6 replies|
08-30-2009 01:20 PM
Hi all. A friend gave me an unwanted 40mm (1 9/16in) thick 600mm (24in) wide glued woodblock maple kitchen worktop which i’m proposing to use to surface a built in pine bench on wall and floor bolted fabricated box section steel brackets. The trouble is i’m a bit unsure how to handle the potential differential expansion issues.
The existing bench top was made years ago from 100mm (4in) glued up roofing joists with no intention of its being used for woodworking. The plan is to flatten it accurately with the router using a levelling frame before seating the worktop on top.
My original thought was to screw the worktop down from underneath using oversize holes or slots in the existing bench to accommodate movement. Thinking a bit more about it though this may present issues when i drill through the proposed grid of circular bench dog holes. Even if i make the holes in the bench underneath oversize, it’d mean their support was reduced to the hole in the 40mm thickness of the worktop.
It’d be nice to just glue the worktop to the bench top, but it seems unlikely to be a runner – although maybe it would be a bit more realistic if anchored down the centre line with screws, and stuck down using a flexible adhesive…
All thoughts, experience and ideas appreciated…
-- Late awakener....