Each section has a varying number of rows and seats per row. If you already have tickets, find your seats for row and seat numbers.
When looking towards the stage from floor seats, lower number seats (like seat 1) are on the right side. So when section 1 is on the right side of the floor (like it is for the Adele show), seat 1 is near the 100s seating sections and higher-number seats are closer to center stage.
For the Adele concert, section 1 is a unique setup. For most concerts at Philips Arena, Floor sections 1-3 are at the front and each include 14 seats per row.
For the Adele show, only sections 1 and 2 are the front. In these sections, rows A-F are separated from rows G-V and are set at a slightly different angle. Given this unique setup, nearly every row in Floor sections 1 and 2 have a varying number of seats.
Generally speaking, most rows have roughly 15 seats with up to 25 seats in some of the larger (wider) rows. In all cases, seat 1 is on the right side of the section when looking towards the stage.