Abri Fondation Beton Estimateur
Calculatrice de base de cabanon: 8x10 50 sacs, 10x12 74 sacs
Reponse directe: une base de cabanon 8x10 de 4 in demande environ 1.09 yd3 ou 50 sacs de 80 lb; une 10x12 demande 1.63 yd3 ou 74 sacs. Verifiez ensuite si sacs, ready-mix ou devis entrepreneur est l achat le plus sur.
Updated July 30, 2026
Base finie 8x10
1.09 yd3
50 80-lb bags
Comparez les sacs avec ready-mix petite charge
Base finie 10x12
1.63 yd3
74 80-lb bags
Le ready-mix merite un devis ecrit
Base finie 12x16
2.61 yd3
118 80-lb bags
Souvent une livraison ou un flux entrepreneur
Enter Shed Base Size
Resultats
Estimation en directBase prep + mix decision
Check gravel, self-mix, bags, and quote lines before ordering
This is the shed-base layer competitors usually skip. It keeps the concrete result, then screens the 4 in gravel base, bagged dry load, 1:2:3 site-mix screen, ready-mix trigger, and granular base removal and compaction cost lines.
Keep granular base removal and compaction cost separate from the concrete order before approving a shed-pad quote.
1.09 yd3 / 1.63 tons
3,920 lb
8 x 94-lb bags
| Decision row | Planning value | What to verify |
|---|---|---|
| Concrete pad | 1.09 yd3 with waste | Use the finished formed pad size, not only the shed catalog footprint. |
| 4 in gravel base | 1.09 yd3 / 1.63 tons | Keep granular base removal and compaction cost separate from concrete. |
| Bagged mix load | 49 80-lb bags / 3920 lb dry mix | Pallet-scale lifting and finish timing need a store delivery or truck quote. |
| 1:2:3 site-mix screen | 8 cement bags + 0.56 yd3 sand + 0.84 yd3 aggregate | Use only as a planning boundary; real mix design depends on local materials and strength. |
| Quote scope | Bag delivery, mini-mix, or short-load comparison | Ask for base prep, concrete, access, finish, anchors, cleanup, and exclusions in writing. |
Reponse rapide
An 8 ft x 10 ft shed base at 4 in thick with 10% waste needs about 1.09 yd3, or about 50 80 lb bags. A 10 ft x 12 ft base is about 1.63 yd3 and 74 80 lb bags; a 12 ft x 16 ft base is about 2.61 yd3 and 118 80 lb bags.
Shed base install scope
Turn shed pad bags into a site-ready plan
Shed calculators usually stop at pad size and bag count. This layer keeps the concrete math, then checks the details that decide whether the shed base will actually work: manufacturer base size, overhang, gravel base, drainage, ramp landing, anchors, backyard access, and bag staging.
80 sq ft
Bag labor and mixer rental check
72/100
| Scope check | Why it matters |
|---|---|
| Finished pad dimensions include shed manufacturer base size, doorway clearance, and overhang. | A shed model footprint is not always the finished concrete pad size. |
| Excavation, gravel base depth, compaction, drainage, and moisture control are specified. | Shed base failures often start with water, soft soil, or missing compaction. |
| Ramp landing, mower entry, anchor layout, reinforcement, and edge forms are separated. | Doorway and mower access can add a separate pour section. |
| Backyard access, bag staging, mixer location, wheelbarrow route, and washout are planned. | Small pads can still fail on access, mixing pace, and staging. |
Transformer le resultat de base en parcours d achat
La reponse de la calculatrice doit devenir une commande magasin, un devis ready-mix ou une revision de perimetre pose avant de payer.
Vous achetez des sacs en magasin
Transforme le nombre de sacs en palettes, sacs unitaires, location de malaxeur, livraison et dechargement.
Creer la liste d achatYou need base depth or drainage clarity
Keeps excavation, compacted depth, geotextile, and drainage separate from concrete volume.
Check gravel base depthLe resultat approche 50+ sacs de 80 lb
Verifie minimums ready-mix, frais petite charge, livraison, main-d oeuvre et timing de finition.
Compare bags vs truckYou want a ready-mix-first shed base check
Normalizes minimum load, access, and quote scope before you order.
Read ready-mix shed guideVous avez un devis pose pour la base
Separe volume de beton, gravier, coffrages, ancrages, drainage, acces, nettoyage et main-d oeuvre.
Review shed pad quoteShed base formula
Pad area
Area = finished pad length x finished pad widthArea = 10 x 8 = 80.00 sq ftVolume de beton
Volume = pad length x pad width x thicknessVolume = 10 x 8 x 0.333Marge et sacs
Final volume = 26.6667 x (1 + 10%/100)Bags = ceil(final volume / 0.6)Comptage rapide des sacs pour base d abri
| Base de cabanon | Beton avec 10% de gaspillage | 40 lb bags | 60 lb bags | Sacs de 80 lb |
|---|---|---|---|---|
| 6 x 8 ft | 0.65 yd3 | 59 | 39 | 30 |
| 8 x 10 ft | 1.09 yd3 | 98 | 66 | 50 |
| 10 x 12 ft | 1.63 yd3 | 147 | 98 | 74 |
| 12 x 16 ft | 2.61 yd3 | 235 | 157 | 118 |
These examples use a 4 in slab and common bag yields. Use the calculator above for exact dimensions, thickness, waste, and bag price.
Exemples de bases d abri
Abri Base Epaisseur Guide
| Projet | Epaisseur de planification | Note |
|---|---|---|
| Light storage shed | 4 in | Common material-planning start on a stable compacted base. |
| Mower or equipment shed | 4-5 in+ | Point loads, reinforcement, and base prep need closer review. |
| Shed with ramp pad | Separate sections | Calculate the main slab and ramp or landing separately. |
| Poor soil or frost area | Confirm locally | Soil, drainage, frost, and code can override a simple estimate. |
Avant de commander
- Utilisez la taille de la dalle finie, pas seulement l'empreinte de la cabane.
- Incluez tout bord, palier de rampe ou dalle d'accès séparée.
- Confirmez la base de gravier, le compactage, le drainage et les ancrages.
- Comparez le béton prêt à l'emploi quand le résultat atteint des dizaines de sacs.
Guide d achat de base d abri
For a complete shed-specific walkthrough, use the written guide after the calculator. It covers 8x10, 10x12, and 12x16 shed base examples, 40/60/80 lb bag counts, ready-mix material cost, gravel base checks, backyard access, anchors, drainage, and quote questions.
Ouvrez leguide de calculatrice de beton pour base de cabanon before treating the material estimate as an installed project budget. For choosing slab thickness, use the concrete slab thickness guide. If backyard access is tight, compare chute, wheelbarrow, buggy, and bagged-concrete options before ordering.
Questions frequentes
Avertissement: Cette calculatrice sert seulement a planifier le materiau beton. Conditions du site, preparation de base, renfort, drainage, joints, precision des coffrages et regles locales peuvent changer les besoins reels. Consultez un entrepreneur ou ingenieur qualifie pour le structurel.