have you called House of Staunton? they are probably the largest sellers of chess items in the world.
chess board
Sort:
Maybe https://www.amazon.com/AMEROUS-Professional-Tournament-Chessboard-Package/dp/B08V8LNPSC or https://www.amazon.com/dp/B0176UXR7E. Both just slightly out of spec 1 and/or 2.
seung17 you could also go for a board with a lighter outer frame that would work + better on the eyes .
ColoradoWoodWoker (USA) on ETSY...
by Brad Borkowski....
chess.com = @bborkowski
custom made, solid wood chess boards, can be made to order
ttps://www.etsy.com/shop/ColoradoWoodWorker?ref=shop_sugg_market
also on ETSY......SakisTsiogkasWood (Greece)....solid wood boards, custom made....
https://www.etsy.com/shop/SakisTsiogkasWood?ref=simple-shop-header-name&listing_id=949004808
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