I am replacing two bathroom vanity tops. Both vanities go wall to wall. One needs a 61.75 inch wide top. The other needs a 47.5 inch wide top. Both are single bowl. Don't want to replace the whole vanity, just the tops. At Lowes, I can get a standard off the shelf 61 inch white cultured marble vanity top for $209.00 plus $35 for two side splashes. I can get a standard 49 inch top for $149.00 plus $35 for the side splashes. If I order the custom sizes, price quoted is approx. $525 (61.75") and $415 (47.5"). Installation cost separate for both options. If I was going to pay those custom prices, I can get granite for less than $100 more total including installation (not white, though, which is my preference; I already have the granite quote for giallo ornamental, same as will go in the kitchen). So, I'm trying to decide if I can fit those standard sizes in the space I have. I will have to pay someone to do the work (I'm 51 YO woman, not able to fit under vanity to remove the old or install the new). Here is what I am thinking. Will this work? 1) 61.75" vanity top: center the vanity top and put filler wood strips on either side. They would be 1/2 inch or less, so side splash should cover them, right? I will be paining the cabinet, so no worry about trying to match a stain. 2) 47.5" vanity top: could we cut out the drywall somehow to fit the 49 inch top? What about trimming it off at each edge? Website says if you cut the edges of the top it voids the warranty. I read somewhere you could use a concrete blade on a circular saw to trim the edges. Suggestions??? EDIT: this is not my exact condo (it's in the same complex), but you can see how the vanities go wall to wall in the pics: http://www.realtor.com/realestateandhomes-detail/4206-Pinehurst-Cir_Little-River_SC_29566_M52157-40768#photo9

Have you tried any of the websites for larger people? I found this in about 2 minutes of googling "large people living needs." Big John Toilet seats.

There would be no problem with that. Have you tried a local HVAC supply shop?

Rectangular ducts have effective diameters that are relatively low compared to the sectional area equivalent. Stick to round where possible. I would follow all the steps I've outlined here many times for determining the hood requirements, then find a hood and blower combination that meets the requirements, and then have a transition made (if not available). If the hood came with an 8-inch duct interface, and an adapter for 6-inch, I would use the 8-inch opening and transition to seven inches. But first, the hood damper needs to be selected that mates to the hood. In the example, an 8-inch damper will likely have lower pressure loss. Did you mean an actual 600 CFM from a 900 CFM rated blower, or an actual 400 CFM from a 600 CFM rated blower? In general, in the full power mode at the flow rate actually achievable, velocity in the duct should be in the 1000 to 2000 ft/min range, so you can calculate velocity for various duct diameters and blower CFM.