No Lip, No Slip. Setting large floor tiles so that they’re flush with the surrounding tiles — with no raised edges, or “lippage” — can be tricky. Q.E.P.’s LASH clips hook under tiles and hold them flat against the bottom of a wedge bridging adjoining tiles. After the mortar sets, the clips are snapped off (the wedges are reusable). The product can be used with grout spacers up to 1/4 inch wide. A bag of 96 clips or wedges costs $10. Q.E.P., 866/435-8665, lashspacer.com.

Mounting Blocks. It’s possible to frame out penetrations through fiber-cement-sided walls with a block of 2-by lumber, but the wood may not last as long as the siding. Mid Atlantic Supply makes fiber-cement SturdiMount mounting blocks with openings sized for vents, pipes, and electrical boxes. The blocks are preflashed and have vinyl nailing...

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