- VAT: Inc Ex
- Shop by department
- Back
- Building
- Timber
- Insulation Plastering
- Heating & Plumbing
- Bathrooms & Kitchens
- Doors, Floors & Joinery
- Tools & Hardware
- Paint & Decorating
- Electronics
- Paving & Decking
- Workwear & Safety
- Garden Centre
- Home Plus
- Handy Hardware
- Emergency & Repair Supplies
- Special Offers
- Contact Us
- Handy Hardware
Get €10 off on orders over €50 - Add TJY26 at checkout (T&C apply)
E-MAIL contact@tjomahony.ie
VAT: Inc Ex
Mannok Aircrete Block B7 4 (72)
Product Code
15QLB4
€3.75 €3.30
/ Price Per ITEM
Can we help you? Chat with an expert nowChat with an expert now
Quinnlite Block B7 4 (72)
The Quinn Lite Seven combines a very high strength to weight ration with an excellent thermal performance making them ideally suited multi-storey domestic and commercial buildings.
Performance & Properties
Gross Dry Density (Kg/m3) 760
Mean Compressive Strength (N/mm2) 7.5
Thermal Conductivity (W/mK) 0.19
Dimensional Tolerance in GPLM D1
Dimensional stability/moisture movement (mm/m) <0.4
Block Thickness(mm)
Note 1 Thermal Resistance (m2K/W) No. Block per pack Wall area per pack (m2)
Note 2 Approx Block Wt. @ 3% moisture (Kg) Approx Wt. of wall per m2 (Kg)
| Block Thickness(mm) Note 1 | Thermal Resistance (m2K/W) | No. Block per pack | Wall area per pack (m2) Note 2 | Approx Block Wt. @ 3% moisture (Kg) | Approx Wt. of wall per m2 (Kg) |
|---|---|---|---|---|---|
| 100 | 0.53 | 72 | 7.30 | 7.41 | 73 |
Length (mm) Width (mm) Height (mm) Unit wt.(Kg)@ 3% moisture No. units per pack Approx wt. (Kg) per pack @ 3% moisture. Fire Resistance
Quinn Lite thermal blocks provide excellent fire protection in both load bearing and non load bearing applications. They are classed as non combustible and have a Class 0 resistance to surface spread of flame and category A1 in accordance with BS EN 13501-1. Block thicknesses required for fire resistance periods are shown in the table below.
6 Hours 4 Hours 3 Hours 2 Hours 90 Mins 60 Mins
Acoustics
Quinn Lite Seven Blocks have a density of 760kg/m3 and so are suitable for use in party wall construction. Guidance on party wall construction can be found in Robust Details or alternatively contact the Quinn Lite Technical Department.
| Brand | TJ O'Mahony |
|---|---|
| Weight | 21.0000 |
| Provided by | TJ O'Mahony |
| Delivery Rule | large & heavy |
Last update: 02-Dec-2025
Delivery Timeframes:
-
Small Items: 2-3 working days
-
Large/ Bulky items: 5-7 working days
-
Extra Large appliances & TV's: 5-7 working days
-
Click & Collect: 1 working day
Delivery Zones (Nationwide):
-
Zone 1: Dublin, Galway, Kildare, Limerick, Meath, Offaly, Tipperary, Wexford, Wicklow
-
Zone 2: Carlow, Clare, Clifden, Kilkenny, Laois, Louth, Waterford, Westmeath
-
Zone 3: Cavan, Cork, Donegal, Kerry, Leitrim, Longford, Mayo, Monaghan, Roscommon, Sligo
Delivery Charges:
| Small & Light | Large & bulky | Extra Large | |
| Zone 1 | €9.99 | €25 | €50 |
| Free delivery on orders over €400 | no free delivery | ||
| Zone 2 | €9.99 | €50 | €50 |
| Zone 3 | €9.99 | N/A | N/A |
* Effective from 3 December 2025
* Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
| Types of goods | Available zones | Descriptions |
| Small & light items | All Zone area | Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors) |
| Large and bulky items Extra Large items |
Zone 1 & 2 only | Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes. |
| Large Paint items (6L / 6L+) | Zone 1 only | Large hazardous items (6L+) - available for collection |
| Available zones | Indicator | Descriptions |
| All zone area |  |
This icon with all zone area in green, indicates this items can be shipped to all Zone. |
| Zone 1 & 2 only | |
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2 |
| Zone 1 only | |
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only. |
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
Free Click & Collect:
Click & Collect is free and available on items in stock at your chosen branch. Click Here to see our Branch Locator.
How it works:
-
Place your order online
-
You will receive an order confirmation email
-
Our team processes your order, please allow up to 4 hours
-
Within branch opening hours, we aim to have your order ready the same day.
-
You will receive an email once your order is ready for collection.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.
*View our full returns policy on our Terms &Conditions Page.