Martin Wasner
05-11-2015, 5:37 PM
I can't find anything on this. I've found all of the other parameters here (http://cabinetreecollection.com/store/catalog/catalogs/Blum/Blum_TANDEM_plus_BLUMOTION_563H_Installation_Instr uctions.pdf) but not the maximum drawer recommendations.
On a 21" drawer, I've always avoided going much over 36" wide. No real reason, just my own thoughts that much wider than that is too wide, and that racking will prematurely wear the slides. The other line of thinking is that the bigger the drawer, the easier it is to exceed the weight rating. I've got a new customer that is going to be asking routinely for drawers that are forty plus inches wide. I know for another $25, Blum has a add on for drawers they call a Lateral Stabilizer to counter the racking. There the specification is a maximum of 53", but once again, there is no information at what width for a given length that they should be added to the drawer.
I had a job a few years ago on a spec house where the new owner wanted to modify what was originally installed as four drawers, 8-1/4" tall, turned into one drawer that was about 36" wide, and probably ~18" tall. She wanted the face too look like the original cabinet though, so the original fronts were re-used, the cabinet modified, and the drawer installed. The drawer was huge and with the fronts on it was pretty heavy. I'd guess it probably weighed close to thirty pounds on it's own. Possibly more. That right there is eating up about a third of the capacity and with a drawer that size, it won't take much to put sixty pounds of whatever in it. At the time I said that I would not warranty it if anything went wrong. I see now that there is a 135# version available for 5/8" sides, but I don't know if that was even available at the time.
On a 21" drawer, I've always avoided going much over 36" wide. No real reason, just my own thoughts that much wider than that is too wide, and that racking will prematurely wear the slides. The other line of thinking is that the bigger the drawer, the easier it is to exceed the weight rating. I've got a new customer that is going to be asking routinely for drawers that are forty plus inches wide. I know for another $25, Blum has a add on for drawers they call a Lateral Stabilizer to counter the racking. There the specification is a maximum of 53", but once again, there is no information at what width for a given length that they should be added to the drawer.
I had a job a few years ago on a spec house where the new owner wanted to modify what was originally installed as four drawers, 8-1/4" tall, turned into one drawer that was about 36" wide, and probably ~18" tall. She wanted the face too look like the original cabinet though, so the original fronts were re-used, the cabinet modified, and the drawer installed. The drawer was huge and with the fronts on it was pretty heavy. I'd guess it probably weighed close to thirty pounds on it's own. Possibly more. That right there is eating up about a third of the capacity and with a drawer that size, it won't take much to put sixty pounds of whatever in it. At the time I said that I would not warranty it if anything went wrong. I see now that there is a 135# version available for 5/8" sides, but I don't know if that was even available at the time.