Interior
Chapel interior of c.1900 with two aisles, 3-sided rising gallery carried on 7 cast iron columns. Pews, pulpit, deacons seat and gallery front all in pitch pine. Painted stucco walls and ceilings. Lobby has tiled floor, ceiling corbels and decorative 3-panel light to chapel, with Gothic arched heads and divided by rounded columns. 2 pairs of 2-panelled doors to chapel. Pews of outer bays angled towards pulpit. Pews throughout have long, horizontal panels to rears and lightly carved terminals. Symmetrical pulpit with slightly projected centre. Stairs to sides with turned balusters and coping rail and larger, decorative, carved end-posts with round heads. Pulpit centre has 2 square panels, diagonally slatted, to base, with 2 narrow, plain horizontal panels above. Raised timber banding above these beneath upper section with elaborately carved paired Gothic headed panels. These panels vertically divided by rounded pillars. The flanks, set back, have similar but plain panels to base, but with upper sections comprising vertical panels in pierced cast iron. Panels display fleur-de-lys and foliate motifs. Wide coping rails above. Pulpit back, located between 2 tall, arched-headed windows, is an arch in timber, painted to resemble stucco. Arch sides have narrow vertical panels, with elaborate brackets to arch springs with florid decoration. Arch has 2 bands of foliate decoration to the upper portion. Plain arched-headed recessed panel to centre. Before the pulpit is a half-octagonal deacons' seat with pierced cast iron panels to seat backs. These bear foliate designs, including quatrefoil motif, all by 'Walter MacFarlane and Co., Glasgow'.
Corbels to ceiling sides beneath gallery, which has curved angles. Cast iron columns by 'T. Jones and Son. Priory Foundry, Carmarthen'. Classical heads, one dated '1899'. Gallery front has serration pattern beneath wide timber band, between the matching coping rail and which, lies a continuous band of painted cast iron panels. These panels display foliate designs set within a square and diamond. Opposite the pulpit is a small clock set within a small, square timber panel.
The main ceiling has a banded stucco cornice and 2 wide margins, with square timber vents set to the corners - each bearing a Celtic cross motif. To the centre, within a raised stucco circle, is a large ceiling rose with florid and foliate designs with similar decoration to wide raised margin. Similar, smaller roses, less ornate, towards pulpit and entrance, set within diagonal bands of raised stucco leading from the ceiling corners towards the centre. Similar raised stucco bands lead from the triangle points to the centre rose. Similar bands run to the chapel sides from the centre rose.