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Gear Loop

Climbing gym · Tours, France

Block'Out Tours grades, explained

Opened in August 2018. It has 1,650 m² with 615 m² of climbing surface: about 130 boulders on 25 wall profiles plus an outdoor wall, reset every three to four weeks. It also has a restaurant, fitness room, sauna, yoga and Pilates, and a climbing shop. Buses 53 and 56 (Danemark), 17 (Suède) and 2 (Thales) stop 5 to 7 minutes away; parking is free.

Day passesGym websiteDirectionsDay pass €17 · hours and prices below

Bouldering grades

Block'Out uses its own numbered scale, B1 (easiest) to B14, instead of grading by hold colour. Block'Out does not publish Font equivalents. Third-party sources agree that, above about 5C, each B step is roughly one Font step, but they differ on where the scale starts. The levels below follow Kaskad Coaching's table (2026); each level's note gives an older forum mapping (2016).

LevelFont≈ V-scale
B1An older (2016) forum mapping: 4.4+V0–V0+
B2An older (2016) forum mapping: 4+.5AV1
B3An older (2016) forum mapping: 5.5B–5CV1–V2
B4An older (2016) forum mapping: 5+.6AV3
B5An older (2016) forum mapping: 6A.6A+V3–V4
B6An older (2016) forum mapping: 6B.6BV4
B7An older (2016) forum mapping: 6C.6B+V4
B8An older (2016) forum mapping: 7A.6CV5
B9An older (2016) forum mapping: 7A+.6C+V5–V6
B10An older (2016) forum mapping: 7B.7AV6
B11An older (2016) forum mapping: 7B+.7A+V7
B12An older (2016) forum mapping: 7C.7BV7–V8
B13An older (2016) forum mapping: 7C+.7B+V8
B14An older (2016) forum mapping: 8A.7CV9

Block'Out grades the same way at all 13 of its gyms. All Block'Out gyms and grades

From climbers' descriptions and photos of the gym's grade boards. Gyms reset and regrade often, and grades vary between setters, so treat this as a guide and check the boards when you visit.

Visiting Block'Out Tours

Address
7-9 avenue du Danemark, 37100 Tours, FranceGoogle MapsApple MapsOpenStreetMap
Booking
Walk in: no booking neededNo booking needed: open climbing is unlimited in time during opening hours. Single sessions and multi-visit books can also be bought online.Day passes
Prices
Day pass · adult€17
Day pass · concessionclub members from other gyms, school and university students, jobseekers€15
Day pass · childunder 10€11
10-visit pass · adultvalid at all Block'Out gyms except Toulouse and Nantes; mandatory lifetime card +€5; reduced rate €120€140
10-visit pass · adultHappy hour only (weekdays 10:30–16:00 and 21:00–22:30; weekends 17:30–20:00); mandatory lifetime card +€5€90
Monthly · adultPass France, valid at all Block'Out gyms; 12-month commitment (then rolling), set-up fee waived; reduced rate €44. Without commitment: €50 set-up fee in the first month.€49
Monthly · adultHappy-hour-only pass (weekdays 10:30–16:00 and 21:00–22:30; weekends 17:30–20:00); same 12-month commitment terms€36
Shoe hire€5
Reduced and under-10 rates shown on the page's price table; the mandatory lifetime card applies to 10-visit cards.All prices on the gym's site
Opening hours
Mon–Fri10:30–22:30
Sat–Sun09:00–20:00
Hours on the gym's site
First visit
What to know before your first visit
Phone
+33 2 47 78 90 21
Photos
InstagramPhotos on Google Maps

Hours and prices from the gym's own website, checked 3 October 2026. They change, so check before you go.

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Questions

What Font grade is B1 at Block'Out Tours?
B1 at Block'Out Tours is 4+, about V0–V0+ in V-scale.
What Font grade is B2 at Block'Out Tours?
B2 at Block'Out Tours is 5A, about V1 in V-scale.
What Font grade is B3 at Block'Out Tours?
B3 at Block'Out Tours is 5B–5C, about V1–V2 in V-scale.
What Font grade is B4 at Block'Out Tours?
B4 at Block'Out Tours is 6A, about V3 in V-scale.
What Font grade is B5 at Block'Out Tours?
B5 at Block'Out Tours is 6A+, about V3–V4 in V-scale.
What Font grade is B6 at Block'Out Tours?
B6 at Block'Out Tours is 6B, about V4 in V-scale.
Convert any gradeAll gyms

Other Block'Out gyms

All 13 Block'Out gyms

More gyms in France

All 3 climbing gyms in Tours

Sources

  1. Block'Out Tours: gym page (opening date, size, services, hours)
  2. Block'Out Tours: La grimpe (B1–B14 levels)
  3. Block'Out Tours: Contact (getting there)
  4. Block'Out Tours: Tarifs & cours
  5. Block'Out Tours: Adultes (FAQ: no booking needed)
  6. Block'Out: FAQ (B1 to B14)
  7. Block'Out: La grimpe ('système de cotation unique', B1 à B14)
  8. Kaskad Coaching: Cotation Block'Out (13 Sep 2026, updated 24 Sep 2026)
  9. Camptocamp forum: Correspondance B chiffre / Fontainebleau (23 Nov 2016)

Checked 3 October 2026. Gear Loop isn't affiliated with Block'Out Tours.