Each solid oak low Profile outside transition is approx 3 1/2" from center to end as depicted in photo! I also installed a guide tab to make transition easier! purchase price is for 2 blocks. block in photo is made to transition with standard 3 5/8 oak moulding which can be purchased in most supply houses including Home Depot! I also have inside corners and middle transitions. If you need more/less or wish to combine order with any of my other listings just send me a message and I will create a listing for you!