Custom glass is measured in the opening it will live in, never off a plan. Accurate Glass & Mirror, a Bergen County NJ glass shop, brings a tape and a long level to the free in-home measure, reads width at several heights, checks plumb on both walls, and records every out of square condition the glass has to absorb.
Width is taken at the bottom, the middle and the top, and the smallest of those three is the number that counts, because glass cannot squeeze past a tight spot. Height is read at both ends. Then the level goes on each wall to find which way it leans and by how much, and across the curb to find which way it falls. A bathroom that measures identically top and bottom but has one wall out of plumb still needs its glass cut differently than a square one.
Real rooms are full of things that are never straight. Lippage where tiles meet, a curb pitched inward so it drains, a bullnose edge standing slightly proud, a niche or a bench eating into the opening. All of it gets written down. A sloped curb means the bottom of a fixed panel is cut on an angle instead of square, and a bowed wall means deciding where the glass sits tight and where the silicone joint absorbs the difference.
Tempered glass cannot be trimmed once it is made. It is cut, edged, drilled and notched, then heat treated, and after that any change means a new panel. So the measure happens on finished walls, with the tile grouted, the curb capped and the pan set, not on backer board with a plan to add a quarter inch later. Glass measured on unfinished surfaces comes back wrong by almost exactly the thickness of the tile.
The visit is also when the decisions get made out loud. Hinge side, swing direction, handle position, where a towel bar lands, and whether a panel should be notched around a bench all get settled with the person who is actually going to use the shower. The same discipline applies to mirrors and glass tabletops: final surfaces, final obstruction locations, real numbers taken in your house, before anything is cut in Lodi. None of that list takes long to write down, and any single item missed is a panel that has to be made a second time.
You can price from your own numbers, but glass should not be fabricated from them. The readings that matter most are the out of plumb and out of square conditions, and those need a long level rather than a tape. Since a tempered panel cannot be corrected afterward, the measure is treated as the responsibility of the shop, which is exactly why it costs nothing.
Longer than most people expect, because the panel is being made rather than pulled off a shelf. Cutting, edging, drilling and tempering happen in sequence, and a hinge set in the finish you picked has a lead time of its own. Ask for a target date when you approve the order instead of assuming a week, and plan for glass to be the last thing that arrives.
Every panel we cut starts as numbers somebody took standing in your bathroom. Book the visit once the tile is done, have a finish in mind, and you will get the layout and a firm written quote before a sheet is scored. Call (201) 460-1313.
