Standard Table Leaf width is 12", however occasional table-leaves may differ.
Determine Leaf Opening Measurement: length of open-area, when slides are extended, should be slightly larger than combined-width of table leaves.
Calculate how many leaves will fit in leaf opening: (total number of table leaves X width of leaves) + 1-1/2" - 2" . For example: 2 table leaves X 12" (width of leaves) = 24" + 2" = 26" leaf opening.
Closed-Length, of selected table slide, should be equal to or greater than, one-half the length of table-top, when closed.
Additional:
Our wood slides are developed with a camber (curved arc) to compensate sagging of the center of the table.
Use table slides with larger-than-need openings. This results in a greater overlap of table slide sections, providing more support when the table is extended.
A drop down center leg to add more support, is recommended for tables with large leaf openings or more than 2-3 leaves .