The GAMMA week 37 flyer, 7 to 13 September: 46 pages, while the same chain has a second 45-page flyer running the same week

The GAMMA week 37 flyer runs to 46 pages, from Monday 7 September to Sunday 13 September. But scanning the GAMMA page today did not turn up one flyer, it turned up two: a second at 45 pages runs from 31 August to 13 September. They share an end date while this one starts a week later, so across the seven days from 7 to 13 September both are in force. Walk into the store and the shelf cards come from those 91 pages, while you are usually holding only one of the two.

• The GAMMA week 37 flyer: 46 pages, valid 7 to 13 September 2026. (source 1)
• The same chain’s second flyer: 45 pages, valid 31 August to 13 September; the viewer counts 46 while the page array holds 45. (source 2)
• Karwei, in the same DIY group, carries an identical window this week: 7 to 13 September, 58 pages. (source 3)
• The overlap between the two GAMMA flyers is the full seven days of 7 to 13 September, which is the entire life of this one. (source 2)

Work out the overlap first: the two share an end date and start seven days apart, so the overlap is this flyer’s entire seven days. 46 plus 45 is 91 pages live in the same week. That is not an error, it is a normal retail pattern: one fortnight-long themed promotion and one week-long set of current specials. What it means for you is that a price you see in GAMMA but cannot find in the flyer is probably in the other one.

The second sum is the sister-chain comparison. Karwei’s window this week matches this one to the day, 7 to 13 September, but it runs to 58 pages. 58 minus 46 is 12 pages: the same week, the same group, and about a quarter more printed space at Karwei. In many towns the two sit a few streets apart, so if you are buying the same item during these seven days both are worth opening, and they close on the same day.

Hokimi field note: when one chain runs two flyers at once, the till reads the shelf card rather than the flyer in your hand. If a price does not match, read the dates on both flyers, because after Sunday 13 September the two expire together.

Retailer

GAMMA, the Dutch DIY and home chain

Valid

Starting Monday and closing the same Sunday

Pages

46, twelve fewer than its sister chain